auto save

snake.py

 import pygame
+import random
+from pygame import locals
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
+#载入图片
+background=pygame.image.load("bg.png")
+right=pygame.image.load("right.png")
+left=pygame.image.load("left.png")
+body=pygame.image.load("body.png")
+food=pygame.image.load("apple.png")
+down=pygame.image.load("down.png")
+up=pygame.image.load("up.png")
+my_font=pygame.font.Font("neuropol.ttf",18)#字体
+        
+x=240
+y=120
+apple_x=360
+apple_y=300
+score=0
+
+
+setheading="right"
+snake_head=right
+
+position=[(180,90),(180,120),(210,120),(x,y)]
 # 创建一个窗口
-??
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+screen=pygame.display.set_mode((660,480))
+
+FPSCLOCK=pygame.time.Clock()
+
+while True:
+    for event in pygame.event.get():
+        if event.type==locals.QUIT:            
+            exit()
+            
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_DOWN and setheading !="up":
+                setheading="down"
+                snake_head=down
+            if event.key==locals.K_UP and setheading !="down":
+                setheading="up"
+                snake_head=up
+            if event.key==locals.K_RIGHT and setheading !="left":
+                setheading="right"
+                snake_head=right
+            if event.key==locals.K_LEFT and setheading !="right":
+                setheading="left"
+                snake_head=left
+                
+
+    if setheading == "right":
+        x+=30
+    elif setheading == "left":
+        x-=30
+    elif setheading == "down":
+        y+=30
+    else:
+        y-=30
+    
+    position.append((x,y))
+
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(1,22)*30-30
+        apple_y=random.randint(1,16)*30-30
+        score+=10
+    else:
+        position.pop(0)    
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
+    screen.blit(background,(0,0))
+
+#    screen.blit(right,(240,120))
+
+
+    screen.blit(food,(apple_x,apple_y))
+    screen.blit(snake_head,position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+
+    info="Score"+str(score)
+    text=my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
+    
+    pygame.display.update()
+    FPSCLOCK.tick(3)
+
+    
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